From the information I found on the Internet, I understood this:
I have two assets that need to be correlated, ie visually the graphics are similar and the movement of one asset repeats the movements of the second one. Each asset has its own average price from which it is rejected. This deviation is the spread. Thus, when the spread of both assets is minimal, ie the minimum gap between asset prices is visible on the chart, I sell one that is expensive and buy one that is cheap.
The most important question is: did I understand everything correctly?
If not, then, please correct it.

Из той информации, которую нашла в интернете поняла вот что:
У меня есть два актива, которые в свою очередь должны быть коррелированны, т.е визуально графики схожи и движение одного актива повторяют движения второго. У каждого актива есть своя средняя цена от которой он отклоняется. Это отклонение и есть спрэд. Таким образом, когда спрэд обоих активов минимале т.е на графике виден минимальный разрыв между ценами активов, я продаю тот который дорог и покупаю тот который дешев. Радуюсь что получила прибыль.
Самый главный вопрос: правильно ли я всё поняла?
Если нет, то, прошу, откорректируйте.

We talk too much that behind the technology of the blockade is the future, that this currency is exclusively for the Internet. But in essence, what services does offer a real exchange of this currency? Why do, for some reason, we try to hold it and not allowing for natural exchange. The question arises: Why until now we do not sell useful software products for crypto currency? or use bitcoin as a payment for using a domain? or we do not use it for advertising awards? or do not use in web analytics? Do you know the existing Internet resources or brands that use bitcoin as payment for their software products, excluding ICO?

maybe I'm too idealistic about the price increase. Is it true that cryptoenthusiasts have become less?

As you know BTC rise from 6K to 10K for two-weeks. History shows that after such a two-week gradual ascent follow an uncontrolled pump which could to raise the price exactly as much as it was in last two weeks in percentage. And I have a question: Should we expected the great rise of BTC (to 14K$) this Sunday 18.02.18?

Zombies, do not panic everything will be fine It is shopping time

Quality goods and customer support speak for themselves and then the community itself sells your goods and services

Perhaps, a good idea would be to give bitcoins to the development of a real business with the condition that the future company will be accept bitcoins as a payment for its services

Incorrectly determines the entry point when opened the shorts to the XRP. In the end my margin was closed but after that there was a sharp drop and I did nothing.

there is no completely rational investors, otherwise we would all be computers, but the computer has not yet learned how to predict price movements exactly like people. Anyway, risks will always be. Another question is how to avoid them? Maybe has a good strategy and every day learn something new about investing. Create algorithm based on your own experience and constantly edit it until you get the result you want. And yes I am irrational investor but I am trying to be more rational

On day trading I use all of these timeframes and also use 1,2,4 hours to determine what trend is now, to what price it can move during the day and depending on expectations buy or sell

blockfolio suitable for these purposes

bitcoin can be perceived as a tool for earning fiat

this is the real problem of education: how to increase the number of economically educated people? Family is the minimum unit of society. From parents, children take the basics of behavior and the basis for organizing themselves as individuals. Perhaps it is worth to let have children only people who have the economical education or it will have to redo the minds of already formed adults (without this education) which will be more problematic because it is much easier to work on the child's flexible mind

We just make the mens do all job for us

I do not think that this will happen again, in any case, the number of bitcoins in the wallet will not change. This currency is not so widely used and in our power to spread knowledge about it and to use it in everyday life. And the price in dollars equivalent, to is it interesting? If bitcoin will accept as payment for its services and spend on purchasing services of other participants, then the system will work

Of course it's worth to trade to gain experience and improve your skills

just believe that you are trader and do steps in this field read and analysing

the best coin is GUP NBT XZC

The price of cryptocurrency is hard to predict. Always need to calculate the risks. I see the weekly chart and get coin when it too low and the indicators shows the begining of up trend